2016

9.1

2015

6.9

2001

7.6

1970

7.3

2013

8.0

2003

6.0

1998

6.7

1972

6.5

2008

6.8

2017

9.0

2007

6.5

1991

2.0

2014

6.8

2013

9.4

2007

6.6

1964

6.2

2023

9.5

2001

7.7

2004

6.5

2004

7.3